№123
1) 8 (х-13) = 48 3) 16 (4х-26) = 224
2) 18 (х+14) = 378 4) 9 (152-7х)=927
№124
1) 11х+8х = 456 4)14x-x-28 = 224
2) 38х-14х=1608 5)8a+7a+15=420
3) y+27y=1204 6)16y-7y+38=3683

8(х-13)=488х-104=488х=48+1048х=152х=1918(х+14)=37818х+252=37818х=378-25218х=126х=716(4х-26)=22464х-416=22464х=224+41664х=640х=109(152-7х)=9271368-63х=927-63х=927-1368-63х=-441х=711х+8х=45619х=456х=2438х-14х=160824х=1608х=67у+27у=120428у=1204у=438а+7а+15=42015а=420-1515а=405а=2716у-7у+38=36839у=3683-389у=3645у=405